Method and device for checking storage battery internal resistance tester

A calibration method and technology of calibration devices, which are applied in the direction of measuring devices, instruments, and measuring electrical variables, can solve the problems of lack of calibration and testing standard basis and methods, etc.

Inactive Publication Date: 2012-12-05
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, there has been a lack of calibration and testi

Method used

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  • Method and device for checking storage battery internal resistance tester
  • Method and device for checking storage battery internal resistance tester
  • Method and device for checking storage battery internal resistance tester

Examples

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[0032] See figure 1 , The battery internal resistance tester is calibrated by precision high current low resistance standard rheostat R, AC / DC ammeter A, AC / DC voltmeter V, standard DC source E, frequency meter F, emergency stop button ST, changeover switch S and Connected wire composition. In addition to the frequency meter, the meter uses AC and DC dual-purpose meters to reduce the number of meters and simplify the connection.

[0033] Both the tested product and the test instrument have protection functions, but an emergency stop button is set to forcibly interrupt the calibration to prevent accidents.

[0034] figure 1 It shows that the tested product is connected to the internal resistance tester of the tested battery to form a verification circuit: the standard varistor R is connected in series between the two voltage terminals U+ and U- of the tested product, AC / DC voltmeter V and frequency meter F They are connected in parallel with the standard varistor R respectively, th...

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Abstract

The invention discloses a method and a device for checking a storage battery internal resistance tester. A checking circuit is formed by connecting a standard rheostat, an alternating/direct current meter, a standard direct current source, a frequency meter, an emergency stop button, a changeover switch and the storage battery internal resistance tester to be checked, the storage battery internal resistance tester which employs a direct current discharging method and/or an alternating current impedance method is checked, and resistance relative errors and/or frequency relative errors of a product to be checked are obtained. By adoption of the method and the device, checking of the measuring accuracy of a storage battery internal resistance tester product in delivery and using periods can be accomplished. The invention has the characteristics of simplicity and convenience for operation and accurate and reliable check result.

Description

technical field [0001] The invention relates to a method and a device for calibrating a battery internal resistance tester, in particular to a method and a device for calibrating a battery internal resistance tester by using a DC discharge method or an AC impedance method. Background technique [0002] The DC power supply used in the power system substation is generally composed of a rectifier charging device, a storage battery pack and a power distribution feeder. Normally, the rectifier charging device provides the working power for the protection, control and communication of the power transmission and transformation equipment in the station. The AC power supply is interrupted due to a grid accident. , the battery pack independently supplies power for protection, control, communication, accident lighting and other accidents. It can be seen that the state of the battery is directly related to the ability of the substation to resist accidents and restore power transmission,...

Claims

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Application Information

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IPC IPC(8): G01R35/00
Inventor 李晶
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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